8 papers
Theoretical study of quantum spin liquids in hyper-hyperkagome magnets: classification, heat capacity, and dynamical spin structure factor
Li Ern Chern, Yong Baek Kim
Recent experiments suggest a quantum spin liquid ground state in the material PbCuTeO, where moments are coupled by antiferromagnetic Heisenberg interactions into a…
Magnetic vortex liquid and anomalous thermal Hall conductivity in frustrated magnets with bond-dependent interactions
Li Ern Chern, Finn Lasse Buessen, Yong Baek Kim
Recently, the observation of large thermal Hall conductivities in correlated insulators with no apparent broken symmetry have generated immense interest and debates on the underlyi…
Sign structure of thermal Hall conductivity for in-plane-field polarized Kitaev magnets
Li Ern Chern, Emily Z. Zhang, Yong Baek Kim
The appearance of half-quantized thermal Hall conductivity in -RuCl in the presence of in-plane magnetic fields has been taken as a strong evidence for Kitaev spin liquid. A…
Emergence of a nematic paramagnet via quantum order-by-disorder and pseudo-Goldstone modes in Kitaev magnets
Matthias Gohlke, Li Ern Chern, Hae-Young Kee +1
The appearance of nontrivial phases in Kitaev materials exposed to an external magnetic field has recently been a subject of intensive studies. Here, we elucidate the relation betw…
Ferromagnetic Kitaev interaction and the origin of large magnetic anisotropy in -RuCl
J. A. Sears, Li Ern Chern, Subin Kim +4
-RuCl is drawing much attention as a promising candidate Kitaev quantum spin liquid. However, despite intensive research efforts, controversy remains about the form of the b…
Magnetic field induced quantum phases in a tensor network study of Kitaev magnets
Hyun-Yong Lee, Ryui Kaneko, Li Ern Chern +4
Recent discovery of the half quantized thermal Hall conductivity in -RuCl, a candidate material for the Kitaev spin liquid, suggests the presence of a highly entangled quant…